An apparatus provides signal links of M with N signal connections. A first stage has first switching matrices, wherein the first switching matrices are designed to establish at least one switchable signal link between each associated first signal connection and an associated second signal connection. A second stage has a second switching matrix with a size of N×M. In a sub-area of the second switching matrix the intersection points X2p,q that comprise switching elements are precise those that for N≧M satisfy the conditions: p−Σλ=1i−1nλ≡q (mod ni); 1≦p−Σλ=1i−1nλ≦ni and 1≦q≦M.
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2. The apparatus as claimed in claim 1 , wherein at least one of the first switching matrices comprises a matrix with switching elements only at those intersection points X1 v,w that lie on a main diagonal and on a half separate from the main diagonal.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, has at least one first switching matrix implemented as a matrix with switching elements only on the main diagonal and on one side of it. This means connections are only allowed directly across or in one triangular half of the matrix, but not both triangular halves.
3. The apparatus as claimed in claim 1 , wherein at least one of the first switching matrices comprises a matrix with switching elements on all intersection points X1 v,w .
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, has at least one first switching matrix with switching elements at all intersection points. This makes the first switching matrix a fully connected crossbar switch, allowing any input to connect to any output.
4. The apparatus as claimed in claim 1 , wherein the sub-area comprises the entire second switching matrix.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M that contains a sub-area of switching elements X2p,q meeting specific conditions, has this sub-area spanning the entire second switching matrix. This means the defined switching element conditions apply to the entire N×M matrix.
5. The apparatus as claimed in claim 1 , wherein k n >=2.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, where specific switching elements X2p,q in a sub-area are active based on modular arithmetic conditions involving 'n' values, satisfies the condition that k multiplied by n is greater than or equal to 2 (k * n >= 2).
6. The apparatus as claimed in claim 1 , wherein N, M>=3.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, has both N and M greater than or equal to 3 (N, M >= 3). This sets a minimum size for the input and output signal connections.
7. The apparatus as claimed in claim 1 , wherein all n i are the same.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, where specific switching elements X2p,q in a sub-area are active based on modular arithmetic conditions involving a series of 'n' values (n_i), has all 'n_i' values the same (all n_i are equal).
8. The apparatus as claimed in claim 1 , wherein the apparatus further comprises a third stage with k m third switching matrices, wherein the third switching matrices m u comprise fifth signal connections and m u sixth signal connections, which clamp third matrices, wherein the third matrices comprise switching elements on all intersection points on a main diagonal and on a half of the third matrices separate from the main diagonal and wherein M is equal to a sum of all m u for u=1 to k m and wherein in each case m u fifth signal connections of each third switching matrix of the first stage has a signal link with in each case m u signal connections of the M fourth signal connections of the second switching matrix.
The two-stage crossbar distributor, which provides signal links between M signal connections and N signal connections using first switching matrices to establish switchable links and a second switching matrix of size N×M, includes a third stage with k_m third switching matrices. These third matrices (m_u) have fifth and sixth signal connections and contain switching elements on the main diagonal and one triangular half. M is equal to the sum of all m_u (from u=1 to k_m). Each third switching matrix's m_u fifth signal connections link to m_u signal connections of the M fourth signal connections of the second switching matrix.
9. The apparatus as claimed in claim 8 , wherein the third matrices comprise switching elements on all intersection points.
The two-stage crossbar distributor, which includes a third stage with k_m third switching matrices (m_u) having fifth and sixth signal connections, where these third matrices contain switching elements on the main diagonal and one triangular half, and where each third switching matrix's m_u fifth signal connections link to m_u signal connections of the M fourth signal connections of the second switching matrix, further specifies that the third matrices have switching elements at all intersection points.
11. The apparatus as claimed in claim 10 , wherein at least one of the first switching matrices comprises a matrix with switching elements only at those intersection points X1 v,w that lie on a main diagonal and on a half separate from the main diagonal.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, and operating under a specific method for establishing links, has at least one first switching matrix with switching elements only on the main diagonal and one side of it. Connections are only allowed across or in one triangular half of the matrix.
12. The apparatus as claimed in claim 10 , wherein at least one of the first switching matrices comprises a matrix with switching elements on all intersection points X1 v,w .
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, and operating under a specific method for establishing links, has at least one first switching matrix with switching elements at all intersection points X1 v,w . This first switching matrix is a fully connected crossbar, connecting any input to any output.
13. The apparatus as claimed in claim 10 , wherein the sub-area comprises the entire second switching matrix.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix that contains a sub-area of switching elements meeting specific conditions derived within a specific method, has this sub-area spanning the entire second switching matrix. This ensures that the specified switching element conditions apply across the complete N×M matrix.
14. The apparatus as claimed in claim 10 , wherein k n >=2.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, and operating under a specific method involving modular arithmetic, satisfies the condition that k multiplied by n is greater than or equal to 2 (k * n >= 2).
15. The apparatus as claimed in claim 10 , wherein N, M>=3.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, has both N and M greater or equal to 3 (N, M >= 3). This constraint enforces a minimum size for input and output signal connections.
16. The apparatus as claimed in claim 10 , wherein all n i are the same.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, where specific switching elements in a sub-area are activated based on modular arithmetic conditions involving a series of 'n' values (n_i), has all 'n_i' values the same (all n_i are equal).
17. The apparatus as claimed in claim 10 , wherein the apparatus further comprises a third stage with k m third switching matrices, wherein the third switching matrices m u comprise fifth signal connections and m u sixth signal connections, which clamp third matrices, wherein the third matrices comprise switching elements on all intersection points on a main diagonal and on a half of the third matrices separate from the main diagonal and wherein M is equal to a sum of all m u for u=1 to k m and wherein in each case m u fifth signal connections of each third switching matrix of the first stage has a signal link with in each case m u signal connections of the M fourth signal connections of the second switching matrix.
The two-stage crossbar distributor providing M signal links to N signal connections, using first stage switching matrices and a second N×M switching matrix, and operating under a specific method, includes a third stage with k_m third switching matrices. These third matrices (m_u) have fifth and sixth signal connections and contain switching elements on the main diagonal and one triangular half. M equals the sum of all m_u (from u=1 to k_m). Each third switching matrix's m_u fifth signal connections link to m_u signal connections of the M fourth signal connections of the second switching matrix.
18. The apparatus as claimed in claim 17 , wherein the third matrices comprise switching elements on all intersection points.
The two-stage crossbar distributor including a third stage with k_m third switching matrices (m_u) having fifth and sixth signal connections, and where each third switching matrix's m_u fifth signal connections link to m_u signal connections of the M fourth signal connections of the second switching matrix based on a specific method, further specifies that the third matrices have switching elements at all intersection points.
19. A method for providing signal links of N R predetermined signal connections of the N first signal connections with N R of M fourth signal connections of a second switching matrix, wherein the N R predetermined signal connections within the fourth signal connections form an uninterrupted sequence of adjacent signal connections and wherein the method comprises: determining a number k R of first switching matrices comprising a first signal connection to be linked; determining a number of first signal connections N i which are to be linked to each first switching matrix and hence the sum N R of all first signal connections to be linked; determining a position of a first area of N R of the M fourth signal connections of the second switching matrix by specifying q R , wherein 0≦q R ≦M−N R and the N R signal connections are an uninterrupted sequence of adjacent fourth signal connections of the M fourth signal connections of the second switching matrix lying in the area 1≦q−q R ≦N R ; dividing the fourth signal connections of the first area into k R first sub-areas UM j , with 1≦j≦k R , and in each case assignment of a sub-area UN i in accordance with a second assignment function i=R2(j), by which the number m j of the fourth signal connections within a sub-area UM j is also specified via the relationship m j =N R2(j) ; connecting all links in switching elements of the second switching matrix located within a submatrix T2R j with the size n R2(j) ×m j , which is defined by the conditions1≦p−Σ λ=1 R2(j)−1 n λ ≦n R2(j) and 1≦q·Σ λ=1 j−1 m λ −q R ≦m j , when the submatrix T 2 R j is located within the sub-area, or of m j of the switching elements selected specifically for the application when T2R j is located outside the sub-area; assigning in accordance with a first assignment function v=R1(w) of N R first signal connections to be linked to second signal connections, which are connected via the second switching matrix in the connecting to one of the fourth signal connections; and establishing a link in switching elements at the intersection points X1 R1(w),w of the first switching matrices.
A method for providing signal links of N_R predetermined signal connections to N_R fourth signal connections of an N x M switching matrix includes these steps: Determine the number (k_R) of first switching matrices connected to linked first signal connections; determine the number (N_i) of first signal connections linked to each first matrix, summing to N_R; determine the position (q_R) of an N_R-sized area of fourth signal connections; divide fourth signal connections into k_R sub-areas (UM_j); assign sub-area UN_i according to function i=R2(j), defining m_j fourth signal connections in UM_j, where m_j=N_R2(j); connect second switching matrix elements within submatrix T2R_j (size n_R2(j) x m_j) when within or select elements specifically if T2R_j is outside the sub-area; assign first signal connections (N_R) to second signal connections via function v=R1(w); establish links at X1 R1(w),w intersection points of first switching matrices.
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November 17, 2014
April 4, 2017
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